Inking apparatus for printing-machines



(No Model.) 2"Sheets Sl1eet 1.

0. B. OOTTRELL. INKING APPARATUS FOR PRINTING MACHINES,

No. 385,098. I Patented June 26, 1888.

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No Model.)

0. B. GOTTRELL.

INKING APPARATUS FOR PRINTING MACHINES.

No. 335,098. Patented June 26, 188 8.

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CALVERT B. COTTRE'LII, OF STONINGTON, CONNECTICUT.

INKING APPARATUS FOR PRINTING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 385,098, dated June 26, 1888.

Application filed August 12, 1887. Serial No. 246,761. (No model.)

To all whom it may concern:

Be it known that I, CALVERT B. COTTRELL, of Stonington, in the county of New London and State of Connecticut, have invented a new and useful Improvement in Inking Apparatus for Printing-lllachines, of which the following is a specification.

My invention is applicable for drum or tworevolution printing machines or presses; and an important object of the invention is to lo- 'cate the ink-fountain and the inking appamoval of the form-rollers.

ratus generally so as to provide for ready access to the form or for the removal of the forniinking rollers.

In carrying out my invention I support the ink-fountain and roller upon brackets which project from and are secured to the cylinderframes, so as to afford free access to the form and other parts beneath the fountain. The ink is delivered from the fountain-roller by a vibrating or movable ductor-roller to a series of distributing-rollers, some of which vibrate longitudinally, and these distributing-rollers deliver the ink to the form-rollers. The several distributing-rollers are mounted in standtops or side frames having hand-connectionssuch as eccentrics-and a hand-lever,whereby the side frames with the distributing-rollers may be lifted clear of the form-rollers, so as to permit access to them or to permit of the re- Upon a shaft as, for example, one of the journals of the main drum or cylinder-is a cam which through a rock-shaft transmits motion to those of the distributingrollers which vibrate lengthwise, and in order to maintain the arm of the rockshaft in constant engagement with said cam, notwithstanding the rising and falling movements which may be given the roller-frame, I

support the rock-shaft in a pipe-bearing which is fitted to said roller-frame, all as more fully hereinafter described.

The invention consists in novel combinations of parts particularly hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of such parts of a machine as are necessary to illustrate my invention. Fig. 2 is a plan thereof, the cylinder or drum being in horizontal section. Fig. 3 is a sectional elevation in a plane transverse to the axis of the cylinder and indicated by the dotted line a: a", Fig. 2.

Similar letters of reference designate corre sponding parts in the several figures.

A. designates the cylinder or drum, which is provided with journals a, mounted in bearings bin suitable cylinder or side frames, 13; and C designates the form-rollers, which rotate by contact with the form upon the bed, which passes beneath them, and is not here shown.

D designates an ink-fountain, which, as usual, is provided with a fountain-roller, d, and this ink-fountain is mounted upon brackets D, which are secured to and project from the cylinder-frame B at a considerable elevation above the main frame of the press, so that free access is afforded beneath the inkfountain and beneath the brackets D to the form, and also to the form-rollers C. The fountain-roller d, as is usual, has upon its shaft ahand-lever, d, carrying a pawl, d and which is operated by a rod, d from an arm, (1*, which is pivoted at (P, and upon which acts a cam, d. The action of the cam (2, bearing on the truck-roller dhserves to vibrate the lever or arm (2 backward and forward, and, through thepawl and ratchet, turnsthe fountainroller d.

e designates a'ductor-roller, which is mounted on a lever, E, fulcrumed ate, and carrying at its opposite end a truck-roll, e upon which acts a cam, E, secured to the end of the cylinder. This cam E acts to move the ductor e alternately into contact with the fountainroller 01 and with one of a series of distributing-rollers, f, which bear one on another, and the lowermost one of which bears upon the form-rollers C. Certain of the distributingrollers f vibrate lengthwise in a well-understood manner, and are provided upon their journals with grooved heads f, with which engage pins or projections f upon the arms f which project in opposite directions from a rock-shaft, F, and at its opposite end this rockshaft F has an arm, f which engages a grooved cam, F, upon one of the cylinder-journals a. It will therefore be seen that, as the cylinder and its journal rotate, the grooved cam F imparts a rocking or vibrating motion to the rock-shaft F, and through the arms f en gaged with the grooved heads f of the rollers f, a longitudinally-vibrating motion is imparted to such rolls and the ink is distributed. I have shown the rollersf as journaled in a frame or stand-top, F, which is fulcrumed at f and by suitablehand-connections the said frame F may be raised and lowered and held in either of its two extreme positions. As here shown, the handconnections consist of a shaft, G, extending across the machine and having upon it two eccentrics, g, the rods 9' of which are connected with the frames F and upon the shaft G is also applied a handle or arm, G, by which the shaft may be turned and the eccentrics shifted a half-revolution, so as to stand at either of their dead-points, in which positions they hold the frame F either elevated, so that its rollers f are entirely out of contact with the form -rollers, or depressed, so that its rollers are in contact with said form-rollers.

It is obvious that when the frames F are raised by the hand-connections described the rollers f would, unless means were employed to prevent, be moved out of proper working relation to the rock-shaft F; and to prevent this I mount the rock-shaft in a long pipe bearing or box, F which is bolted to the frame F, and the arm f has enough play in the cam so as to permit the frame F to be moved without disengaging the crank pin or arm f from the cam F. Consequently, when the frame F is raised or lowered, the rock-shaft F is simultaneously moved, and the arms f are always held in engagement with the grooved heads f of the rollers f, while the arm f is also 55 maintained in engagement with the grooved cam F. Whenever the frame F and its rollersf are raised by the action of the eccentrics and shaft 9 G, the rollers f are freed from contact with the rollers O, and the rollers C can be manipulated and removed or replaced, or access can be had to them for any other purose.

p What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination, with the cylinder and form-rollers for acting upon the form, of a movable frame or stand-top wherein are journaled the vibrating and other distributing rollers, a cam and rock-shaft for vibrating said rollers, and a bearing for the rock-shaft secured to the movable frame and serving to maintain the rock-shaft in engagement with its operating cam, substantially as herein described.

2. The combination,with the cylinder A and the form-rollers O, of the swinging frame F carrying the distributing-rollers f, the eccentrics g, for moving said frame, the cam F, and the rock-shaft F, for vibrating certain of the rollers f, and the box F for said rock-shaft, secured to the swinging frame, substantially as herein described.

CALVERT B. COTTRELL.

Witnesses:

FREDK. HAYNES, EMIL HERTER. 

